Our Living Soul ✨ Ch.21 Flashcards
1
Q
What is a natural resource
A
A natural resource is created by nature and used by people
2
Q
What are the ingredients of soil
A
Micro organisms Air Water Mineral particles Plant remains
3
Q
How is soil formed
A
Climate provides the agents of weathering to erode Denude parent rock it also provides heat and moisture this combine forms soil
4
Q
What is soil ?
A
Soil is a thin layer of loose material on the surface of the land
5
Q
Vegetation into humus?
A
Leafs fall of trees
Micro organisms and oxygen work on the plant litter and cause it to decay slowly into black jelly like substance called humus which makes soil fertile
6
Q
Leeching
A
Rain soaks downward through the soil
It dissolves minerals humus and other plant nutrients as the water moved down it washes these nutrients out of the reach of plant roots
